Slag wool is similar to rock wool, but is manufactured using by-products from steel industry blast furnaces. Unlike rock wool, this wool is grey as it contains no iron; the yellow appearance of rock wool is partly caused by the oxidation of the iron it contains.

All of our fibrous products use slag wool only.

Slag is a steel industry by-product, recycled to produce a wool used as thermal and fire insulation. It contributes to the safety and security of people and property.

Projiso is committed to continuous innovation and is constantly developing new products and systems.
Its unfailing attentiveness to market needs and its customers enables it to develop systems of suitable quality that correspond to the specifications provided.